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Mosten Alloy Co., Ltd.

Molybdenum Alloys

  • Mosten
  • 25 Apr

Molybdenum alloy, which began to produce molybdenum products by powder metallurgy process in 1910. Until 1945, powder metallurgy process was the only industrial production method for molybdenum sheet, molybdenum wire and molybdenum bar. A nonferrous alloy formed by adding other elements to a molybdenum matrix. The main alloying elements are titanium, zirconium, hafnium, tungsten and rare earth elements. Molybdenum alloy is a non-ferrous alloy formed by adding other elements to molybdenum matrix. The main alloying elements are titanium, zirconium, hafnium, tungsten and rare earth elements. Titanium, zirconium and hafnium can not only strengthen molybdenum alloy by solid solution strengthening, but also keep the low temperature plasticity of the alloy, but also form stable and dispersed carbide phase, which can improve the strength and recrystallization temperature of the alloy. Molybdenum alloy has good thermal conductivity, conductivity and low expansion coefficient. It has high strength at high temperature (1100 ℃ 1650 ℃) and is easier to process than tungsten. It can be used as gate and anode for electronic tube, supporting material for electric light source, die-casting and extrusion die, spare parts for spacecraft and so on. The development of molybdenum alloy is limited because of its low temperature brittleness and welding brittleness and easy oxidation at high temperature. The molybdenum alloys produced in industry are molybdenum-titanium-zirconium system, molybdenum-tungsten series and molybdenum-rare earth series alloys. The main strengthening ways of molybdenum alloy are solution strengthening, precipitation strengthening and work hardening. Molybdenum alloy sheet, molybdenum strip, molybdenum foil, molybdenum pipe, bar, wire and profile can be obtained by plastic processing, and the strength and low temperature plasticity can also be improved. Molybdenum alloy (stamping tool) an alloy consisting of molybdenum-based addition of other elements. In refractory metals, molybdenum and its alloys have good thermal conductivity, conductivity and low coefficient of expansion (similar to the glass for electronic tubes), high strength at high temperatures (1100 ℃ 1650 ℃) and easy processing compared with tungsten. It is therefore used in the manufacturing of electronic tubes (grids and anodes), electrical light sources (support materials), metal processing tools (die-casting and extrusion dies and perforated heads), as well as in the aerospace industry. Molybdenum can resist the corrosion of molten glass, its oxide will not pollute the glass. Molybdenum has been used as heating electrode in glass industry since 1943. Mo-30W alloy has been successfully used in zinc smelting industry because of its excellent resistance to molten zinc corrosion. Molybdenum is also used in the manufacture of heat exchangers and valves in sulphuric acid production.